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Lithium ion batteries have become an ubiquitous part of portable electronics. With high energy to weigh ratio and no charge memory effect (which plagued NiCd), and slow self charge loss, Lithium ion batteries represent an important technology for electronics. As with any technology, there are advantages and disadvantages. Lithium ion batteries are not as durable as NiCd or NiMH batteries and require protection circuitry to prevent over charging and deep discharge. Lithium ion batteries also have higher internal resistance than competing technologies and a shelf life issue.

Performance of batteries overtime is an important consideration in selection. The primary battery performance metric is capacity which a measure of the time duration for a sustain current draw, documented in mAHr or (milliamps hours). The change in capacity overtime provides a understanding of the reliability of the battery. Capacity is influenced by temperature and usage.

This webinar will provide of review of on-going research associated with lithium batteries and degradation.

About the Presenter:

Bhanu Sood is the Director of the Test Services and Failure Analysis (TSFA) Laboratory at the University of Maryland's Center for Advanced Life Cycle Engineering. He holds Masters Degrees in Advance Materials Processing and Materials Science, and a Bachelors Degree in Mechanical Engineering.

For more information see bio